Paper-glazing machine



C. M. HALLMAN.

RAPJER GLAZING MACHINE.

APPLICATION FILED AUG-27, 1919.

Patented Nov. 2, 1920.

Mir/i: M (GEM/71m, MENTOR Aciurnags UNITED STATES PATENT OFFICE.

CHARLES M. HALLMAN, 0E wYoM-IssINe, PENNSYLVANIA, AssIe on T0WYOMISSING- GLAZED PAPER COMPANY, or WEST READING, rENNsYLvANIA, ACORPORATION OF PENNSYLVANIA.

Specification of Letters Patent.

rArEn-eLAzINe MACHINE.

Patented. Nov. 2, 1920.

To all whom it may concern:

Be it known that 1, CHARLES M. HALL- MAN, a citizen of the UnitedStates, residing at \Vyomissing, in the county of Berks and State ofPennsylvania, have invented cer tain new and useful Improvements inPaper-Glazing Machines, of which the fol lowing is a specification.

This invention relates to flinting apparatus such as is commonlyemployed for glazing paper, and more particularly to the construction ofthe polishing bed upon which the coated paper is pressed while being fedforward and subjected to the burnishing action of the transverselyreciprocated polishing element. The invention is fully described inconnection with the accompanying drawing, and the novel features arespecifically defined in the claims.

Means for continuously feeding the coated strip of paper over thepolishing bed, and for imparting reciprocating transverse movement,under regulated pressure, to the polishing element, are features commonto such apparatus, no specific showing thereof being required for aclear understanding of the present invention the sole object of which isto provide a polishing bed of improved construction and advantageousoperation as hereinafter clearly set forth.

Figure 1 is an elevational view of my improved finishing bed,illustrated in connection with a diagrammatic showing of a reciprocativepolishing element cooperating therewith; a cross-section of the passingpaper being indicated by a heavy dotted llne.

Fig. 2 is a plan view of the same; and Fig. 3 is a cross-sectional viewon the line 3-3 of Figs. 1 and 2.

The essential features of well known flinting machine construction aresufiiciently indicated by the showing of the machine frame 10 on whichis rigidly secured the slightly raised finishing-bed platform 11, and ofthe transversely reciprocated polishing element 12, which is carried bya long radius arm 13 pivoted to a horizontally arranged spring beam 14having any suitable means for adjusting the polishing pressure. Thespecific construction of these parts, and of the paper feeding devicescommonly employed, is immaterial to the present mvention.

form burnishing action.

It is well recognized in the art that the paper supporting bed is asource of great trouble and expense not only as to proper maintenancebut also in the securing of satisfactory and uniform burnishing effects.Such beds have been commonly formed of most carefully selected. andprepared special woods with a view to reliably insuring the desiredglazing effect, though composite structures have also been resorted to.In my improved construction I dispense entirely with selected material,avoid the dis advantages incident to the usual heating by constantburnishing action, and provide an advantageously resilient bed, securedby clamping plates adapted to be adjustably set for properly guardingthe edges of the treated paper and maintaining the face of theburnishing element in proper'operative condition.

Upon the finishing bed platform 11, which is rigidly secured to thehorizontal frame surface 10 as usual, I mount a flat spring-bar 20,preferably of ordinary rolled steel, upon the supports 21., 21 on theends of the platform, so as to raise the bar above the latter andprovidea clearance space 22 under the bar as indicated. The upper surface ofthis spring-bar is covered by a correspondingly shaped strip 23 of thickpaper or the like, such as is commonly placed upon the usual wood bed,for immediate contact with the passing material 19. The bar 20 isrigidly secured to the platform 11 by means of bolts 24: passing throughthe supports 21 and having countersunk heads. as shown; and thepaper-contacting strip 23 is clamped to the surface of bar 20 by meansof separate clamping screws 28 and clamping plates 25. These plates aremade of flat steel of suitable width, having their inwardly extendingportions 26, 26 tapered down in thickness, and having longitudinal slots27, 27 through which the clamping screws 28 pass so that each plate maybe adjusted to properly set its end 26 relative to the edge of any widthpaper treated, before tightening the clamping screw.

In operation the spring bar 20 forms a resilient polishing bed whichyields slightly to the burnishing pressure so as to practically equalizethe latter and insure a uni- Any heat developed is quickly dissipatedwithout injurious effect. The accurately set edges 26 of the rigidlyheld clamping plates 25 carry the polishing element 12 at each extremityof its stroke so as to properly maintain the polishing surface thereof,and insure proper treatment of the edges of the paper. The cost ofconstruction and maintenance is minimized.

- What I claim is:

1. In a machine for glazing coated paper comprising a reciprocatingflint bar; a yielding paper-supporting bed comprising a fixed platform,a spring-bar having its end portions only fixedly supported by saidplatform, and a relatively soft paper-contacting strip clamped upon saidspring-bar.

2. In a machine for glazing coated paper comprising a reciprocatingflint bar, and a paper-supporting bed having a relatively softpaper-contacting strip thereon; a pair of adjustable clamping plates forsaid strip each having an inwardly extending flintcarrying end, andmeans for securing each of said clamping plates in variable positionupon the paper-supporting bed.

In testimony whereof I afiix my signature.

CHARLES M. HALLMAN.

